Assessment of the aerodynamic response of bridge decks by means of 2D Reynolds averaged Navier-Stokes simulations

F. Nieto, S. Hernández, I. Kusano, J. Jurado

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Resum

The results of several bridge decks 2D steady and unsteady RANS (Reynolds Averaged Navier-Stokes) simulations are reported in this work. The focus has been put on the potential of CFD based simulations in industrial applications in the realm of bridge engineering aerodynamic and aeroelastic problems. The force coefficients of a box deck have been computed at different angles of attack finding a good match with the experimental data available in the literature. Also CFD steady simulations have been used to obtain the force coefficients of a Π section considered in the original design proposal of a cable-stayed bridge. Based on the numerical computations, modifications in the original design have been proposed adding fairings and baffles which showed an improved aerodynamic response. The scale effects in the performance of guide vanes for mitigating the vortex-induced response of a twin box girder have been analyzed by means of CFD obtaining a good agreement with experimental measurements. Finally the effect of wind barriers in a twin box deck have been assessed based on the spectrum of the lift coefficient for both the cross-section fitted with or without wind barriers.

Idioma originalAnglès
Títol de la publicacióWIT Transactions on Engineering Sciences
EditorsCarlos A. Brebbia, S. Hernandez, M. Rahman
EditorWITPress
Pàgines407-417
Nombre de pàgines11
ISBN (electrònic)9781845647902
DOIs
Estat de la publicacióPublicada - 1 de jul. 2014
Publicat externament
Esdeveniment10th International Conference on Advances in Fluid Mechanics, AFM 2014 - A Coruna, Spain
Durada: 1 de jul. 20143 de jul. 2014

Sèrie de publicacions

NomWIT Transactions on Engineering Sciences
Volum82
ISSN (imprès)1743-3533

Conferència

Conferència10th International Conference on Advances in Fluid Mechanics, AFM 2014
País/TerritoriSpain
CiutatA Coruna
Període1/07/143/07/14

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